<template>
    <div class="shopcar-container">
        <div class="goods-list">

            <!-- 商品列表项区域 -->
            <div class="mui-card" v-for="(item, i) in goodslist" :key="item.id">
                <div class="mui-card-content">
		        	<div class="mui-card-content-inner">
                       
					        <!-- <div class="mui-switch mui-active" data-switch="1" style="transition-duration: 0.2s;">
						    <div class="mui-switch-handle" style="transition-duration: 0.2s; transform: translate(43px, 0px);"></div>
					        </div> -->
	         			<mt-switch v-model="$store.getters.getGoodsSelected[item.id]" @change="selectedChange(item.id,$store.getters.getGoodsSelected[item.id])"></mt-switch>
                        <img :src="item.thumb_path">
                        <div class="info">
                            <h1>{{item.title}}</h1>
                            <p>
                                <span class="price">￥{{item.sell_price}}</span>
                                <numbox :initcount="$store.getters.getGoodsCount[item.id]" :goodsid="item.id"></numbox>
                                <!-- 问题： 如何从购物车中获取商品的数量呢 -->
                                <!-- 1、我们可以先创建一个 空对象，然后循环购物车中所有商品的数量，把 当前循环这条商品的id
                                作为对象的属性名， count 值 作为对象的 属性值， 这样 当把所有的商品都循环了一遍，就会得到一个对象：
                                { id: count, 88: 5 } -->
                                <a href="#" @click.prevent="remove(item.id,i)">删除</a>
                            </p>
                        </div>
	 		        </div>
		        </div>
            </div>

            <!-- 商品结算区 -->
            <div class="mui-card">
                <div class="mui-card-content">
		        	<div class="mui-card-content-inner jiesuan">
                        <div class="left">
                            <p>总计（不含运费）</p>
                            <p>已勾选商品 <span class="red">{{$store.getters.getGoodsCountAndAmount.count}}</span> 件，总计 <span class="red">￥{{$store.getters.getGoodsCountAndAmount.amount}} </span> 元</p>
                        </div>
                        <mt-button type="danger">去结算</mt-button>
			        </div>
		        </div>
            </div>
        </div>

    </div>
</template>


<script>
import numbox from "../subcomponents/shopcar_numbox.vue";
export default {
    data() {
        return {
            goodslist: []
        }
    },
    created() {
        this.getGoodsList();
    },
    methods: {
        getGoodsList() {
            var idArr = [];
            this.$store.state.car.forEach(element => {
                idArr.push(element.id);
            });

            // 如果购物车里没有商品则直接返回   不需要请求数据接口
            if(idArr.length <= 0) {
                return;
            }
            this.$http.get('api/goods/getshopcarlist/'+idArr.join(',')).then(result => {
                if(result.body.status === 0) {
                    this.goodslist = result.body.message;
                }
            })

            console.log(this.goodslist);
        },
        remove(id, index) {
            // 点击删除，把商品从 store 中根据传递的 Id 删除，同时  把 当前组件中的 goodslist 中，对应要删除的那个商品，使用
            // index 来删除
            this.goodslist.splice(index, 1);
            this.$store.commit("removeFromCar", id);
        },
        selectedChange(id, val) {
            // 每当点击开关，把最新的  状态 同步到 store 中
            // console.log(id+"---"+val);
            this.$store.commit("updategoodsSelected", {id:id, selected: val});
        }
    },
    components: {
        numbox,
    }
}
</script>


<style lang="scss" scoped>
.shopcar-container {
    background-color: #eee;
    .goods-list {
        .mui-card-content-inner {
            display: flex;
            align-items: center;
        }
        img {
            width: 60px;
            height: 60px;
        }
        h1 {
            font-size: 13px;
        }
        .info {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            .price {
                color: red;
                font-weight: bold;
            }
        }
    }
    .jiesuan {
        display: flex;
        justify-content: space-between;
        align-items: center;
        .red {
            color: red;
            font-weight: bold;
            font-size: 16px;
        }
    }
}
</style>